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authorimp <imp@FreeBSD.org>2006-07-14 22:47:07 +0000
committerimp <imp@FreeBSD.org>2006-07-14 22:47:07 +0000
commit514e7fc291e22139df0e31ff59dc547d2b16e5d5 (patch)
treee12e1547bbd9d90830bf10ea3984258d3ae53ddc /sys/dev/spibus/spibus_if.m
parent29ab994ef0c5f04e4d6ffe65f87a279d44b39488 (diff)
downloadFreeBSD-src-514e7fc291e22139df0e31ff59dc547d2b16e5d5.zip
FreeBSD-src-514e7fc291e22139df0e31ff59dc547d2b16e5d5.tar.gz
MFp4:
Initial spibus support. Seems to be OK, but needs some polish. # someone should write a bit-bang spi parallel port interface :-)
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+#-
+# Copyright (c) 2006 M. Warner Losh
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+#include <sys/bus.h>
+#include <dev/spibus/spi.h>
+
+INTERFACE spibus;
+
+#
+# Do a spi command
+#
+METHOD int transfer {
+ device_t dev;
+ device_t child;
+ struct spi_command *cmd;
+};
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